<!DOCTYPE html>
<html lang='en'>

<head>
    <meta charset='UTF-8'>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    <title>Document</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 40px;
        }

        .button {
            background: #1b8f5a;
            transition: background 0.25s ease-in;
            border-radius: 4px;
            display: inline-block;
            border: none;
            padding: 0.75rem 1rem;
            margin: 0;
            text-decoration: none;
            color: #ffffff;
            font-family: sans-serif;
            font-size: 1rem;
            cursor: pointer;
            text-align: center;
            -webkit-appearance: none;
            -moz-appearance: none;
        }

        button:hover,
        button:focus {
            transition: background 0.3s ease-out;
            background: #3eaf7c;
        }

        button:focus {
            outline: 1px solid #fff;
            outline-offset: -4px;
        }
    </style>
    <script src='./vue.global.js'></script>
</head>

<body>
    <div id="app">
        <button class="button">
            {{ message }}
        </button>
    </div>
    <script>
        const ButtonApp = {
            data() {
                return {
                    message: 'Hover Me!'
                }
            }
        }

        Vue.createApp(ButtonApp).mount('#app')
    </script>
</body>

</html>